▎ 摘　　要

NOVELTY - Preparing carbon materials rich in topological defects by high-temperature ammonia treatment involves using nitrogen-doped carbon material as a precursor, and heat-treating in an ammonia atmosphere to obtain a carbon material rich in carbon topological defects. USE - Method for preparing carbon materials rich in topological defects by high-temperature ammonia treatment used as a catalyst for electrochemical reduction of carbon dioxide (claimed). ADVANTAGE - The method uses nitrogen-doped carbon material as a precursor and heat-treats it in an ammonia atmosphere to obtain a carbon material rich in carbon topological defects. It has high-efficiency carbon dioxide electroreduction catalytic activity, high selectivity to CO, and high stability, so it can be used as a catalyst for electrochemical reduction of carbon dioxide.